However, in this area some local people deliberately chew betel nut in order to achieve the social prestige of darkly stained teeth, so the AD was understandably less than effective.

然而在这一地区，当地人有意咀嚼槟榔使牙齿变黑以赢得社会威望。因此可以理解该广告收效甚微。

youdao

It's the distiller's first change in 40 years of running staid black-and-white ads in the U.S. One ad in tall, slender type on deliberately weathered paper declares the Old No. 7 brand to be the same since the Sixties -- the 1860s.

FORBES: Gutenberg revisited